Michael spends a half hour adding water to his pool part of the time at a rate of 15 gallons per minute and the rest of the time at a rate of 9 gallons per minute. Let t be the time in minutes that he adds water at the faster rate write an algebraic expression to represent the total number of water added to the pool

Answers

Answer 1

Answer:

24t + 270 gallons

Step-by-step explanation:

Given that :

Addition rate 1 = 15 gallons per minute

Addition rate 2 = 9 gallons per minute

Total time spent adding water = half an hour = 30 minutes = 0.5 hour

Time spent adding water at faster rate = t

Time spent addition water at slower rate = (30 - t)

Total number of water added to the pool :

Amount of water added = addition rate * time

Hence,

Amount of water added at faster rate :

(15 gal / min) * t = 15t gallons

Amount added at slower rate :

(9 gal / min) * (30 - t) = (270 - 9t) gallons

Total amount of water added to the pool:

15t gallons + (270 - 9t)gallons

15t + 270 + 9t

24t + 270 gallons


Related Questions

If the ordered pairs graphed are all equivalent ratios, what ordered pair is missing?

Answers

Answer:

12,3

Step-by-step explanation:

x axis is going by 4

y axis is going by 1

Together teammates Pedro and Ricky got 2689 base hits last season Pedro had 281 more hits than Ricky how many hits does each player have?

Answers

Answer: Ricky has 1204 hits and Pedro has 1485 hits

Explanation:

- Let R be the number of hits that Ricky had
- Let P be the number of hits that Pedro had

R + P = 2689

But Pedro has 281 more hit than Ricky

Thus, P = R + 281

Substitute this value in our first equation

R + R + 281 = 2689
2R + 281 = 2689
2R = 2689 - 281
2R = 2408
R = 2408/2
R = 1204

And P = R + 281

But R = 1204

=> P = 1204 + 281 = 1485

Therefore, Pedro has 1485 base hit and Ricky has 1204 hit.

how do you write 7,870 in scientific notations ?

Answers

Answer:

7.87X10^3

Step-by-step explanation:

^ means to the power of

12. The number of student athletes at a local high school is 300 and is increasing at a rate of
8% per year. What is the expected number of student athletes at the school in 5 years if
this rate continues?

Answers


300*.08= 24
300+24= 324
24*4= 96

324+96= 420

420 athletes are expected

Write a linear function role for the data in the table.

Answers

Do you mean like an equation?
Here you go- y=-2x+3

Benji wrote the expression below to match the description "three less than the quotient of a number and nine" he wrote “3-n/9”explain benji's error

Answers

Benji’s error is that the division should happen BEFORE subtracting 3. 3 should be subtracted from the quotient.

The correct response should be: (n/9)-3

2m² +2m- 24=0
Alguien me podría ayudar a decirme gracias .

Answers

Answer:

Required Answer:-

[tex]{:}\longrightarrow[/tex][tex]\sf 2m^2+2m-24=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2m^2-6m+4m-24=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2m (m-6)+4 (m-6)=0[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf (2m+4)(m-6)=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf (2m+4)=0{\quad}or\: (m-6)=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2m=-4=0 {\quad}or\: m=6 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf m={\dfrac {4}{-2}}{\quad}or\: m=6 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf m=-2 {\quad} or\:m=6 [/tex]

[tex]\therefore[/tex][tex]{\underline{\boxed{\bf m=-2,6}}}[/tex]

Which best describes the relationship between the 125° angle and angle A?

They are same side interior angles. Angle A measures 55°.
They are alternate interior angles. Angle A measures 125°.
They are vertical angles. Angle A measures 125°.
They are corresponding angles. Angle A measures 55°.

Answers

Answer:

A.

Step-by-step explanation:

They are same side interior angles. Angle A measures 55°.

PLEASE MARK IT AS BRAINLIEST

Answer:

They are same side interior angles. Angle A measures 55°.

Step-by-step explanation:

just is

its past due so plz help me

Answers

Answer:

y= 5/8x

Step-by-step explanation:

When it says y is it typically means y=.

When it says 5/8 of a number or of a variable it means that number times that variable.

Hope this helps!

If you can solve both of these ill give brainliest with work!

Answers

Answer:

1) 4 ft

2) Length =69

Width=64

Step-by-step explanation:

1) 2x-2+2x-2+x-2+x-2=x+x-1+x-1

6x-8=3x-2

6x-3x=-2+8

3x=6

x=2

plugging it back in, we get for the triangle

2+2-1+2-1=4 (same answer for the rectangle, although it would have a width of zero)

2) w+w+w+5+w+5=266

4w+10=266

4w=266-10

4w=256

w=64

l=64+5=69

Which of the following expressions are equivalent?

Your answer:

(5*4)*1=5+(4*1)


5+(1+3)= (5+1) +3


5-(1-3)=(5-1)-3


5 ÷ 2= 2 ÷ 5

Answers

Answer:

the second option

Step-by-step explanation:

5+(1+3)= (5+1) +3

hope this helps :)

Every female bear has 3 baby cubs. What is the constant of proportionality for the ratio of cubs to female bears? (4 points)


one-half

one-third

3

2

Answers

For every one bear there are 3 cubs 1:3 BUT it’s asking for the ratio of Cubs to bears and there’s 3 Cubs for every 1 female bear so 3:1
***3***

The constant of proportionality for the ratio of cubs to female bears is 3.

The constant of proportionality is typically used when we are comparing something with another thing.

In this case, since every female bear has 3 baby cubs, the constant of proportionality for the ratio of cubs to female bears will be:

= 3/1

= 3

In conclusion, the correct option is 3.

Read related link on:

https://brainly.com/question/18636645

PLEASE HELP ME WITH THIS!!!

calculate the combined surface area of the following three dimensional objects​

Answers

Answer:

455.53cm^2

Step-by-step explanation:

diameter of hemisphere = 10cm

radius of hemisphere = 10/2 cm = 5cm

height of hemisphere = radius of hemisphere = 5cm

height of cylinder = 12cm - 5cm = 7cm

surface area = 2pi(5)7 + pi(5)^2 + 2pi(5)^2 = 455.53cm^2 (5sf)

Answer:

455.53cm^2

Is this correct?

It will really help if you answer atleast 2 of them

Answers

2. 8 x 43 = 344

8 x 43 = 8 (40 + 3)

8 x 43 = 320 + 24

3. 6 x 532 = 3192

6 x 532 = 6 (500 + 30 + 2)

6 x 532 = 3000 + 180 + 12

4. 5 x 923 = 4615

5 x 923 = 5 (900 + 20 + 3)

5 x 923 = 4500 + 100 + 15

I hope this helps :)

zero is an integer?​

Answers

Answer:

yes it is because 0-4 is an integer

Step-by-step explanation:

Answer:

yes, it is also a whole number.

Step-by-step explanation:

Hope this helps and have a good day! :)

Ryan conducted a 6 day study observing the effects of an organic plant food on the growth of his sprouting bean plant. He tracked these two pieces of info:

1. The amount of plant food remaining in the container after each days study.

2. The height of the plant over time.

Ryan found that the amount of plant food remaining decreased an equal amount each day. He used the entire 72 millimeters by the end of his study. Question

Determine the domain and the range for this relationship.


0≤y ≤6


0 ≤x ≤72


{0, 12, 24, 36, 48, 60, 72}


0 ≤x ≤6


{0,1,2,3,4,5,6}


{0,6,12,18,24,30}


0 ≤y ≤72

Answers

Answer:

Domain: [tex]0\leq x\leq 6[/tex]

Range: [tex]\{0, 12, 24, 36, 48, 60, 72\}[/tex]

Step-by-step explanation:

Let [tex]y[/tex] or [tex]f(x)[/tex] be equal to the amount of plant food that remains after each day.

[tex]x[/tex] be the number of days that have passed.

Total amount of plant food used is 72 mm.

Number of days the experiment goes on is 6 days.

Plant food used each day is [tex]\dfrac{72}{6}=12\ \text{mm}[/tex].

So, the function will be

[tex]y=f(x)=72-12x[/tex]

at

[tex]x=0,y=72[/tex]

[tex]x=1,y=72-12\times 1=60[/tex]

[tex]x=2,y=72-12\times 2=48[/tex]

[tex]x=3,72-12\times 3=36[/tex]

[tex]x=4,72-12\times 4=24[/tex]

[tex]x=5,72-12\times 5=12[/tex]

[tex]x=6,72-12\times 6=0[/tex]

Value of [tex]x[/tex] is the domain which is [tex]0\leq x\leq 6[/tex].

Value of [tex]y=f(x)[/tex] is the range which is [tex]\{0, 12, 24, 36, 48, 60, 72\}[/tex].

What in 5 plus 5 divided by 2 plus 100

Answers

Answer:

1.02 looooooool

Answer:

107.5

Step-by-step explanation:

Make sure you use PEMDAS! (parentheeses, exponets, multiplication, divison, addition, and subtraction!)

So, 5/2 is 2.5 plus 100 is 102.5 plus another 5 is 107.5! Hope this helped :)

5x + 5 - 2x - 1 which of the following is an equivalent expression

Answers

Answer:

3x + 4

Step-by-step explanation:

5x + 5 - 2x - 1

3x + 5 - 1

3x + 4

given m/n find the value of x if (x-3) and if (8x +3 )

Answers

Answer:

x= 8 Step-by-step explanation:

find the slope

13. y=-x+0
14. y=(7/14)x+2
15. y=(2/4)x+1
16. y=3x-4

Answers

Slopes:

13) -1
14) 7/14
15) 2/4 or 1/2
16) 3

Ryan achieved an 89% on the same multiple choice test. He answered some questions correctly, left at least one blank and
got at least one wrong answer. He also got some possible points for extra credit. Give one possible answer combination of the
questions Ryan could have answered on the multiple-choice test.

Answers

Answer:

Ryan could have answered multiple choice answers and true or false answers rather than knowledge answer like written prompts

Step-by-step explanation:

Hope this helped:)

Is this a valid argument ?Given:if an object is in the dhape of a sphere ,then it rolls. This ball is in the shape of a sphere . Conclusion:this ball rolls

Answers

Answer:

The answer is "yes, it uses the  Law of Detachment as an argument".

Step-by-step explanation:

It is also the method of getting it all in the world in which we give up. It will not imply whether they give up our desire. They may not leave the desire so, we do never give up.

In this, it is committed to the outcome as long as it mixes separate purpose with such a separate result, we shall get whatever we want.In this law, If an element is true, and its hypothesis is true, Symbolically, if p, as well as p and q  both, are true.

Which of the following inequalities is equivalent
to -31 + 12s <3s + 15 ?

Answers

Answer:

 -31+12s

Step-by-step explanation:

The required inequality that is equivalent to -31 + 12s < 3s + 15 is 9s < 46.

Given that,
To determine the inequalities is equivalent to -31 + 12s <3s + 15.

What is inequality?

Inequality can be defined as the relation of the equation containing the symbol of ( ≤, ≥, <, >) instead of the equal sign in an equation.

Here,

-31 + 12s < 3s + 15
12s - 3s < 15 + 31
9s < 46

Thus, the required inequality that is equivalent to -31 + 12s < 3s + 15 is 9s < 46.

Learn more about inequality here:

brainly.com/question/14098842

#SPJ6



help meee will mark brainliest ​

Answers

Answer:

I believe it is B -4/5 I am sorry if I am wrong. If I am right hope this helps and please mark brainlist.

The ratio of girls to boys at soccer practice is 3:4. If on Saturday there will be a total of 42 players, how many boys will be playing and how many girls?

Answers

Answer:

[tex]Boys = 24[/tex]

[tex]Girls = 18[/tex]

Step-by-step explanation:

Given

[tex]G:B= 3:4[/tex]

[tex]Total = 42[/tex]

Required

Determine the number of boys and girls

We have to convert the ratio to fraction;

Number of girls can be calculated as:

[tex]Girls = \frac{G}{G + B} * Total[/tex]

[tex]Girls = \frac{3}{3 + 4} * 42[/tex]

[tex]Girls = \frac{3}{7} * 42[/tex]

[tex]Girls = 3 * 6[/tex]

[tex]Girls = 18[/tex]

[tex]Boys = Total - Girls[/tex]

[tex]Boys = 42 - 18[/tex]

[tex]Boys = 24[/tex]

PLS HELP!!!!!!!!!!!!!

Answers

First, multiply the top equation by 2 and bottom by -3.
60x+60y=900
-60x-75y=-1035
————————
-15y=-135
—————-
-15=-15
y=9

So the answer should be 9.

Solve the following compound inequality.
5x + 7 ≤ -3 OR 3x - 4 ≥ 11

A. -2 ≤ x ≤ 5

B. x ≤ -2 OR x ≥ 5

C. x ≤ -15 OR x ≥ 12

D. x ≥ 5

Thank you!

Answers

Answer:

B

Step-by-step explanation:

We have the compound inequality:

[tex]5x+7\leq-3 \text{ or } 3x-4\geq 11[/tex]

Since this is an “OR” inequality, we can solve each inequality individually. So:

1)

We have:

[tex]5x+7\leq-3[/tex]

Subtract 7 from both sides:

[tex]5x\leq -10[/tex]

Divide both sides by 5:

[tex]x\leq-2[/tex]

So, the first solution is above.

2)

We have:

[tex]3x-4\geq 11[/tex]

Add 4 to both sides:

[tex]3x\geq15[/tex]

Divide both side by 3:

[tex]x\geq5[/tex]

Our second solution is above.

Therefore, our solution is:

[tex]x\leq -2 \text{ or } x\geq5[/tex]

Since our original inequality is “OR,” our solution set remains an “OR.”

Hence, our answer is B.

IM GONNA RUn OuT Of PoInTs HeLp Me tho

Loves you's

(Find x Answer to get 5 stars. a thanks, and brainliest)

[ Happy Thanksgiving Eat yo Turkey boi]

Answers

Answer:

I recommend using m a t h w a y . c o m

Step-by-step explanation:

its the best, and happy thanksgiving

Answer:

1 = 3 ( None )

Step-by-step explanation:

There is no x.

16x what equals -112

Answers

Answer:

-7

Step-by-step explanation:

16x=-112

x=-112/16

x=-7

PLS GIVE BRAINLIEST

Here are recipes for two different banana cakes. Information for the first recipe is shown in the table.
1st Recipe: y = 1.5x
2nd Recipe: y = 7/4x
If you used 4 cups of sugar, how much flour does each recipe need?
a. First: 2 cups, Second: 8 cups
b. First: 7 cups, second: 6 cups
c. First: 4 cups, second: 2 cups
d. First: 6 cups, Second: 7 cups

Answers

Answer:

d. First: 6 cups, Second: 7 cups

Step-by-step explanation:

Using the formulas to find the amount of flour needed:

1. y = 1.5x = 1.5*4 = 6 cups2. y = 7/4x = 7/4*4 = 7 cups

Correct choice is d.

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